Jose Mourinho believes that Real Madrid can still come back in their Champions League tie with Borussia Dortmund.

The Portuguese is refusing to give up on guiding Real Madrid into the final despite being 4-1 down in the semi final going into tonight's game.

"I cannot put a percentage chance on it," Mourinho said, "especially when the score is so imbalanced: when it's like that, it is hard to use mathematics to justify claiming that you have a chance.

"It is only football and we're 4-1 down. It is possible. [But] if we play like we did in Dortmund, forget it. I was not worried about how they felt after the game, I was worried about analysing that game."